Answer:
10t+10=20
Step-by-step explanation:
Choose the inverse of y = x2 - 10x.
y = 2√x-25-5
y = fx-25 +5
y = + 1+25 – 5
y = f(x+25 +5
=Y2-10Y
We move all terms to the left:
-(Y2-10Y)=0
We add all the numbers together, and all the variables
-(+Y^2-10Y)=0
We get rid of parentheses
-Y^2+10Y=0
We add all the numbers together, and all the variables
-1Y^2+10Y=0
a = -1; b = 10; c = 0;
Δ = b2-4ac
Δ = 102-4·(-1)·0
Δ = 100
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
Y1=−b−Δ√2aY2=−b+Δ√2a
Δ‾‾√=100‾‾‾‾√=10
Y1=−b−Δ√2a=−(10)−102∗−1=−20−2=+10
Y2=−b+Δ√2a=−(10)+102∗−1=0−2=0
The inverse of the given function is y=±√(x+25)+5. Therefore, the option D is the correct answer.
What is inverse function?Inverse function is represented by f⁻¹ with regards to the original function and the domain of the original function becomes the range of inverse function and the range of the given function becomes the domain of the inverse function. The graph of the inverse function is obtained by swapping (x, y) with (y, x) with reference to the line y = x.
The given function is y=x²-10x
Replace x with y and y with x.
x=y²-10y
x=y(y-10)
y=x/(y-10)
So, the equation is non-invertible, the equations of the graph gained by reflecting over y = x
y=±√(x+25)+5
Therefore, the option D is the correct answer.
Learn more about the inverse function here:
https://brainly.com/question/2883051.
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Write the equation of the line that passes through the points (1,6) and (3, -4)
A. y = -5x + 11
B. y = x - 11
C. y = 5x +3
D. y = 2x -3
Answer:
A. y = -5x + 11
Step-by-step explanation:
The general form of the equation of a line is given as
y - y1 = m (x - x1)
where m is the slope and x1, y1 are the coordinates of a point on the line.
m = (y2 - y1)/(x2 - x1)
Given the points (1,6) and (3, -4)
m = (-4-6)/(3-1)
=-10/2
= -5
The equation of the line will be
y - 6 = -5(x -1)
y - 6 = -5x + 5
Add 6 to both side
y = -5x + 5 + 6
y = -5x + 11
Option A
what are the answers for these and the coordinates
answer this please and asadp
ur mom
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Answer:
A. x/3 + 10
C. (3015/x) - 186
Step-by-step explanation:
a. 15/3+10
5+10
15
b. 15,521/15
1034.73 repeated
(3015/x)-186
3015/15-186
201-186
15
2x^2/5-25
Find the volume of the given shape. Round your answer to the nearest
tenth if necessary.
*
Answer:
4,084
Step-by-step explanation:
Volume of a cylinder formula [tex]v=\pi r^{2} h[/tex]
h = 13ft
r = 10ft (20/2)
Then you solve
[tex]v=3.14*10^{2}*13\\\\v=3.14*100*13\\v=314*13\\v=4,082[/tex]
Find the total price of a $13.99 movie after a sales tax of 8% is added. what is the total amount *
Answer:
15.10 I believe
Step-by-step explanation:
Pls help, I will give brainlist
Answer:
3-> 10
60<-200
Step-by-step explanation:
X times something = Y
6 times something= 20
something= 20/6= 10/3
3 times 10/3 = 10
200 / 10/3 = 200 times 3/10 =60
y=10
x=60
(I will give Brainliest and 100 points!!!)
James bought 4 tubes of paint to use for an art project. He paid the same amount for each tube, and he spent less than $20 in all. Solve for the cost of tube of paint.
(You have to write it with inequalities, not an equal sign.)
Joseph must sell more than 20 ice cream cones in order to make a profit. He has already sold 6 cones. How many cones must Joseph still sell?
(You have to write it in inequalities, not an equal sign. For example, NOT 2=25, but like THIS: 2<25)
Answer: Problem 1: x<$5
Problem 2: 6 + c ≥ 20
Step-by-step explanation:
number of tubes=4
total=<$20
4(x)<$20
x<$20/4
x<$5
number of ice cream cones needed to make profit=20
number of ice cream cones sold so far= 6
how many left?= c
6 + c ≥ 20
I am not a professional, simply using prior knowledge.
PLS HELP ME :(( what is the initial value of all linear functions that show a proportional relationship?
Answer:
The initial value, or y-intercept, is the output value when the input of a linear function is zero. It is the y-value of the point where the line crosses the y-axis. An increasing linear function results in a graph that slants upward from left to right and has a positive slope.
A summer camp wants to buy 2,944 popsicles. If there are 8 popsicles in each box, how many boxes should the camp buy?
Answer:
368 boxes of popsicles :)
Step-by-step explanation:
2,944/8 = 368
Simplify (3x - 5) + (5x + 1). (1 point)
оа
8x - 6
Oь
8x +4
Oc
8x - 4
Od
2x - 4
Answer:
The answer is C. 8x - 4
Step-by-step explanation:
Eliminate the redundant parentheses.
(3x - 5) + (5x + 1)
3x - 5 + 5x + 1
Add the numbers.
3x - 5 + 5x + 1
3x - 4 + 5x
Combine like terms.
3x - 4 + 5x
8x - 4
Graph the line y= 12x–3.
Answer:
-3 is the Y intercept. And 12x is the slope. Are there any options?
Step-by-step explanation:
Answer:
Picture is the answer
Step-by-step explanation:
Please help.
On Saturday, the temperature at midnight
was -17 °F
At noon, the temperature was greater than
10°F.
About how many degrees did the
temperature change from midnight to
noon? Explain your reasoning.
Answer:
About 30°F.
Step-by-step explanation:
-17 is close to -20 so -20+20=0 then it says greater then 10 so then 0+10.
I dont know if my logic makes sense, please tell me if I'm right
Answer:
Step-by-step explanation:
27 f
A car is driving down a road at a normal speed of 50 miles per hour. It enters a hilly area of gradual incline and decline, where it must drive 50 miles up hill and then 50 miles downhill. If this 100 mile section of road takes 2.6 hours to traverse instead of the expected 2 hours (the time it would take if the road was completely flat) determine the speed that the hills add or subtract when going over.
Answer:
Step-by-step explanation:
I'm going to assume that the car goes 50-x mph uphill and 50+x mph downhill.
x ≅ 24 miles per hour
26 mph uphill and 74 mph downhill
I NEED HELP SOON AS POSSIBLE! Will give brainlyest
Step-by-step explanation:
I think it is the last one.
Answer:
b
Step-by-step explanation:
\sqrt{bb}
equal
b
In a math statement 4^9 the 9 is called the
Answer:
exponent
Step-by-step explanation:
cuz that s what it is called
Answer:
expo
Step-by-step explanation:
give them brain, they're correct.
Which of the decimals or fractions is not equal to 0.525 or 1/8
Answer:
0.18
Step-by-step explanation:
1/8 as a decimal is 0.125
1/8 un-simplified is 3/24
0.525 as a fraction is 21/40
So 0.18 is the only one that doesn't belong
0.18 is not equal to 0.525 or 1/8. Therefore Option (A) is the correct answer.
We need to find which of the decimals or fractions are not equal to 0.525 or 1/8.
How do convert decimals to fractions?The decimal numeral system is the standard system for denoting integer and non-integer numbers.
To convert decimal to fraction follow these steps
Step 1: Make a fraction with the decimal number as the numerator (top number) and a 1 as the denominator (bottom number).
Step 2: Remove the decimal places by multiplication. First, count how many places are to the right of the decimal. Next, given that you have x decimal places, multiply the numerator and denominator by [tex]10^{x}[/tex].
Step 3: Reduce the fraction. Find the Greatest Common Factor (GCF) of the numerator and denominator and divide both numerator and denominator by the GCF.
Step 4: Simplify the remaining fraction to a mixed number fraction if possible.
Now, from option (A)
0.18=18/100=9/25
From option (B)
0.125=125/1000=5/40=1/8
From option (C)
3/24=1/8
From option (D)
21/40=0.525
Therefore, option (A) is the correct answer.
To learn more about the decimals visit:
https://brainly.com/question/548650.
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Genevieve deposit $400into her bank account. The equation A(t)= 400(1.07) can be used to calculate the value of her money after t years. What is the annual interest rate she is earning on her deposit
Answer:
Step-by-step explanation:
7%
Answer: 7%
Step-by-step explanation:
please help me with this question! lots of points
Answer:
H = 1M + 15
to graph this equation, put a point on (0, 15) and a point on (1, 16)
Answer: The answer would be H = 1M + 15
To graph the equation, put a point on (0, 15) and a point on (1, 16)
You would get your answer!
Hope this helps ;-)
What is 5/4 as decimal
Answer:
1.25
Step-by-step explanation:
1.25 you divide 5/4
{2, 3, 8, 19, 46, ...}
Answer:
111
Step-by-step explanation:
Multiply the number by two and then add the number right before it.
3*2+2=8
8*2+3=19
19*2+8=46
46*2+19=111
and so on.
Find the percent of increase from 12.5 inches to 18.5 inches. Round the percent to the nearest tenth if necessary.
Answer:
148%
Step-by-step explanation:
12.5x = 18.5
Can someone plz correct me plz I beg u
Answer:
mean is when you add all the numbers up and divide by how many numbers there are.
ok just saw your other comment for help, hope this isn't too late but the answer would be 35.2
Rounded: 35
hope it helped :)
Which best describes the error in finding the simple interest earned on $500 at 6% for 18 months? They did not convert $500 to cents. They did not multiply in the correct order. They did not place the decimal in the answer correctly. They did not convert 18 months to years. Question 2 Correct the error. The simple interest earned equals $ .
Answer:
45
OThey did not covert the 18 months to year
Step-by-step explanation:
I= PxRxT. 18/12=1.5
I=500x0.06x1.5
I=45
can you help me please
Answer:
141.12 cm^2
Step-by-step explanation:
The formula for area of a triangle is [tex]h(b1+b2)1/2[/tex]. you have that:
b1, or base 1, = 12.2
b2, or base 2, = 10.2
h, or height, = 12.6
so plug this into the formula:
[tex]12.6(12.2+10.2)1/2\\12.6(22.4)1/2\\12.6*11.2\\141.12[/tex]
Answer:
141.12cm^2
Step-by-step explanation:
First split the trapezoid into two shapes: a rectangle and a triangle.
The area of the rectangle is (10.2cm)(12.6cm) = 128.52cm^2
Finding the area of the triangle is a little trickier. In order to find the base of the triangle, subtract 12.2-10.2=2. The area of a triangle is defined as A=1/2bh, so let's plug in our values:
A = (1/2)(2)(12.6) = 12.6cm^2
Now, add them together.
12.6cm^2 + 128.52cm^2 = 141.12cm^2
plot 2 2/3 and 1 7/9.
Answer:
Down below :)
Step-by-step explanation:
Hey there!
To plot a fraction on a graph you have to turn it into an improper fraction. In this case, the improper fraction for 2 2/3 is 8/3 and the improper fraction for 1 7/9 is 16/9.
*Note: To find the improper fraction of a fraction you must multiply the denominator by the whole number and then add the numerator.
With these two improper fractions...
8/3
16/9 (Simplify it down to 8/3 since both 16 and 9 go into 3)
You can now graph it. To graph, the numerator tells you how many times to go up and the denominator tells you how many times to go right. IF IT'S NEGATIVE IT WILL DO THE OPPOSITE IF THE NUMERATOR IS NEGATIVE IT WILL GO DOWN INSTEAD OF UP AND IF THE DENOMINATOR IS NEGATIVE IT WILL GO LEFT INSTEAD OF RIGHT.
8/9 means you need to start at the origin, (0,0) and go 8 up and 3 to the right. 8/3 means you start at the origin and go 8 up and 3 to the right. You will almost always start at the origin.
I really hope this helps :)
Is the point (3, 4) a solution to the linear equation 5x - 9y = 32?
Answer:
it equals -21 so no
Step-by-step explanation:
happy valentines!
Answer:
No, It does not.
Step-by-step explanation:
(3,4) means (x,y). When you insert 3 to x and 4 to y, You get this:
5(3)-9(4)=32
If you multiply 5 and 3, You get 15.
15-9(4)=32
If you multiply 9 and 4, you get 36.
15-36=32
If you subtract 15-36, you get -21.
This is why the answer is no because -21 does not equal 32
-21 ≠ 32
Hope this helps! :)
What is the measure of the missing angle
The measure of the missing angle is 119 degrees.
Explanation:
This is because this angle is a supplementary angle, which means that two angles put together equal 180 degrees. Since we already know the measure of one angle (61 degrees), we can subtract it from 180 degrees. We could figure this out by doing 180-61, which would get us the measure of the missing angle, 119 degrees.
simplify the expression (n^4)^8
Answer:
N^32
Step-by-step explanation:
Answer:
(n4)8
=(n4)8
=n(4)(8)
=n32
Hope this helps!! :)
can someone answer this please its due in soon ill give brainliest
Answer:
[tex] - 4\leqslant x \leqslant 3[/tex]